American Studies Commons^™

Synthesis And Physical Properties Of Group 14 Intermetallic Clathrates, Stevce Stefanoski

USF Tampa Graduate Theses and Dissertations

The search of materials relevant for thermoelectric and magnetocaloric applications, as well as materials that interact with light, is an important aspect of the materials science. Such materials can be used for solid-state power generation and refrigeration, as light sources, detectors, or controllers. Intermetallic clathrates have long been of interest for the materials science research. The promise these materials hold for useful applications ranges from thermoelectrics to photovoltaics and optoelectronics to potentially ultra-hard materials and magnetic cooling applications. Their unique physical properties are intimately related to their intriguing structural properties. Thus a fundamental understanding of the chemistry and physics of …

The Mediating Role Of Regulatory Focus In The Relationship Between Transformational/Transactional Leadership And Follower Work Outcomes, Erin J. Walker

USF Tampa Graduate Theses and Dissertations

The purpose of this research was to integrate the areas of leadership and motivation by examining how leaders' behaviors affect their followers' regulatory foci. Specifically, a separate laboratory experiment and field survey were conducted to determine whether leader transformational and transactional behaviors shape followers' work-based promotion and prevention regulatory foci, which in turn affect followers' outcomes at work. Overall, there was limited evidence that inspirational motivation and contingent reward leader behaviors were related to follower work-based regulatory focus, and work-based regulatory focus was related to several work-related outcomes. The moderating role of chronic regulatory focus on the relationship between leader …

Paleo-Indian To Spanish Occupation Around Choctawhatchee Bay, Northwest Florida, As Documented In A Private Artifact Collection, Deena Woodward

USF Tampa Graduate Theses and Dissertations

This project documents and analyzes a substantial private collection of artifacts from archaeological sites around Choctawhatchee Bay, northwest Florida. The goals are to determine what the materials can contribute to the archaeological record, how they enhance our knowledge of the people who lived there over the past 2000 years, and how this information can be used to expand or contradict models of prehistoric lifeways in this region. This is done by comparing artifact assemblages, looking at site distribution patterns, and using pXRF trace-element analysis to compare Late Archaic clay objects with those from elsewhere along the Gulf.

Examination of the …

"People Aren't Mind Readers": A Study Of Sexual Self-Concept, Partner Communication, And Sexual Satisfaction, Heather Blunt

USF Tampa Graduate Theses and Dissertations

Sexual health is an important component to overall well-being and quality of life. Yet so much of sexual health research is focused solely on the negative consequences of sexuality, such as unintended pregnancy and transmission of sexually transmitted infections. Recently, the need for a positive, health promotion focused framework for research and understanding sexual health has received attention, including from the World Health Organization and the Centers for Disease Control and Prevention. This transition of public health research and practice from a disease-based framework to a positive, health promotion framework necessitates exploring what factors are associated with positive sexuality and …

The Impact Of Socioscientific Issues Based Curriculum Involving Environmental Outdoor Education For Fourth Grade Students, Karey Burek

USF Tampa Graduate Theses and Dissertations

There is a divide between what students are being taught within the science classroom and what they experience out in the real world. This study sought to explore possible relationships between a socioscientific issues embedded curriculum and outcome variables addressing environmental attitude and knowledge, oral and written argumentation and critical thinking skills. Both quantitative and qualitative methods were used to examine both within and between class differences as well as individual differences between the beginning and end of a semester of elementary school. Results indicated that socioscientific issues assist students in developing their critical thinking skills while also providing students …

Direct Verification Of The Locking Of Liquid Locking Compounds In Threaded Fasteners, Ryan Hunter

USF Tampa Graduate Theses and Dissertations

The motivation of this research is to explore the viability of a method to directly verify whether or not an anaerobic adhesive within a threaded fastener assembly has cured sufficiently to provide secondary locking. Direct verification was implemented via the application of a test torque in the loosening direction of a fastener assembly with Loctite (given a 24 hour cure time). A three phase test plan was developed with the intent of identifying and utilizing this verification torque value which is unique to a given fastener assembly.

It was proved that the direct verification method, as outlined in the test …

A Commentary On Gottfried Wilhelm Leibniz's Discourse On Metaphysics #19, Richard Lamborn Samuel Lamborn

USF Tampa Graduate Theses and Dissertations

This commentary on article #19 of Gottfried Wilhelm Leibniz's Discourse on Metaphysics is for the purpose of promoting the understanding of Leibniz on the role of teleology in physics. Understanding Leibniz on final causes is crucial to understanding his overall natural philosophy. If one approaches Leibniz with a bias regarding either final causes or protestant Christian theology, such that they ignore these aspects of Leibniz, such a person is in danger of completly misunderstanding this philosopher. Leibniz is a mix of natural philosophy, mechanical physics, and protestant Christian theology. The rationale behind this study is to cause the student of …

Federal Neighborhood Stabilization Policy Deployment In Select Florida Jurisdictions, Kevin Carl Mccarthy

USF Tampa Graduate Theses and Dissertations

In 2008 the Federal government enacted a Neighborhood Stabilization Program (NSP) to address the neighborhood effects of the late-2000s foreclosure crisis. Congress subsequently funded a second and third NSP. This research employs mixed methods to examine the effectiveness of the first round of the NSP in three Florida jurisdictions. The results are analyzed within the larger context of substantive housing theory and federal housing policy. The success of the program is evaluated using a mixed-scanning procedural planning theoretical framework.

Ontogeny And Littoral Structure Of Lakes Created On Phosphate Mined Lands Of Central Florida, Chrysoula Mitraki

USF Tampa Graduate Theses and Dissertations

Created lakes are an end product of phosphate mining in Florida. Beginning in 1975, Florida reclamation rules set criteria for phosphate created lakes aiming to approximate the structure of natural lakes, and emphasizing extensive littoral zones with both emergent and submersed vegetation.

Lake development relative to lake age and design were examined for 22 phosphate lakes representing a 40-year age trajectory, utilizing water quality and benthic invertebrate communities from littoral and deep-water locations (Chapter 1). The relative importance of morphometry and lake age in the development of littoral plant communities was examined using multiple vegetation surveys throughout the year, in …

Aging Of Florida Blue Crabs, Callinectes Sapidus, Through The Biochemical Extraction Of Lipofuscin, Claire Elizabeth Crowley

USF Tampa Graduate Theses and Dissertations

The blue crab, Callinectes sapidus, represents an ecologically and economically important component of marine and estuarine ecosystems. In Florida, blue crab landings accounted for $9.6 million dollars during the 2010 fishing season. Accurate stock assessments for this valuable fishery are essential. Age is a critical biological component of accurate stock assessments; however, blue crabs and other crustaceans are especially difficult to age because of the complex nature of discrete growth. Biochemical extraction of an aging pigment, lipofuscin, was developed using blue crab eyestalks. The current study investigated the effects of freezing preservation on lipofuscin extracts and examined whether the …

Engineering Of A Knowledge Management System For Relational Medical Diagnosis, Maria Carolina Herrera-Hernandez

USF Tampa Graduate Theses and Dissertations

The increasingly high costs of health care in the U.S. have led the general public to search for different medical approaches. Since the 1990's, the use of Complementary and Alternative Medicine (CAM) has radically increased in the U.S. due to its approach to treat physical, mental, and emotional causes of illness. In 2009, the National Health Statistics reported the impact of CAM in the U.S. health care economy, with population expenditures of $14.8 billion out-of-pocket on natural Medicine and $12.4 billion out-of-pocket on visits to CAM providers as a complement to Western Medicine care.

CAM interconnects human functions to reach …

Inside Nfl Marriages: A Seven Year Ethnographic Study Of Love And Marriage In Professional Football, Rachel Anne Binns Terrill

USF Tampa Graduate Theses and Dissertations

When women marry NFL players and subsequently become NFL wives, they are thrust out of the lives they have known and into a form of secondary socialization among other NFL wives. In this dissertation, I use ethnography and narrative inquiry, the first- person narratives of four NFL wives, interactive interviews with dozens of NFL wives, friendship as method, and my personal autoethnographic experiences to describe the social interactions between NFL wives, the themes of their marriages, and the trajectories of their identity formation and transformation of NFL wives during their time in the league.

I also use autoethnography and writing …

A Novel Device And Nanoparticle-Based Approach For Improving Diagnosis And Treatment Of Pelvic Inflammatory Disease, Natasha Faith Cover

USF Tampa Graduate Theses and Dissertations

Pelvic Inflammatory Disease (PID) is one of the most common causes of morbidity in women. PID is a polymicrobial infection of the female reproductive tract, and is associated with pelvic pain, abnormal uterine bleeding, and tubal damage that can lead to ectopic pregnancies and infertility. It is curable but the effects of PID can be permanent if not properly diagnosed and treated. PID presents as a spectrum of disease and is often missed at early stages; even acute PID can be difficult to diagnose, as there is no single conclusive diagnostic test. Currently, PID is identified and treated syndromically because …

The Interrelationships Among Family Stress, Parenting Behavior, And Behavior Problems: An Investigation Of Internationally Adopted Chinese Girls, Cheryl Gelley

USF Tampa Graduate Theses and Dissertations

Although there have been many studies investigating international adoptees' outcomes in relation to their pre-adoption experiences, there is a paucity of research investigating the influence of post-adoption experiences. Guided by the proximity of the family to the child in Bronfenbrenner's (1979) ecological systems theory of human development, this study addressed a gap in the literature by investigating the interrelationships among family-related variables (e.g., stress in family environment, parenting behavior) and 648 internationally adopted Chinese girls' behavior problems. Moderate, positive relationships were found between family stress and both internalizing (r = .43, p < .001) and externalizing (r = .59, p < .001) behavior problems. Modest, inverse relationships were found between authoritative parenting and both internalizing (r = -.08, p < .01) and externalizing (r = -.15, p < .001) behavior problems. Additionally, modest to moderate, positive relationships were found between authoritarian and permissive parenting and internalizing (r = .18, p < .001; r = .19, p < .001, respectively) and externalizing (r = .39, p < .001; r = .34, p < .001, respectively) behavior problems. Finally, authoritarian and permissive parenting behaviors were partial mediators between family stress and both internalizing (R² = .08, p < .001; R² = .08, p …

Multisensory Integration In Shark Feeding Behavior, Jayne M. Gardiner

USF Tampa Graduate Theses and Dissertations

Multimodal sensory input directs simple and complex behaviors in animals. Most research to date has been limited to studies of individual senses rather than multiple senses working together, leading to important advances in our comprehension of the sensory systems in isolation, but not their complementary and alternative roles in difficult behavioral tasks, such as feeding. In the marine environment, a prey item might emit an odor, create a hydrodynamic disturbance, such as from gill movements or swimming, be visible to the predator, produce a sound, and/or produce a weak electrical field. Therefore, the goal of this study was to investigate …

Factors That Promote Transformative Learning Experiences Of International Graduat-Level Learners, Alex Kumi Yeboah

USF Tampa Graduate Theses and Dissertations

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The Relationships Between Individual Characteristics, Work Factors, And Emotional Labor Strategies In The Prediction Of Burnout Among Mental Health Service Providers, Jessica Belle Handelsman

USF Tampa Graduate Theses and Dissertations

Relatively few empirical studies in the professional burnout literature have examined mental health providers (MHPs). Research on other professional groups has demonstrated that certain emotion regulation strategies, known as emotional labor (i.e., deep acting and surface acting), are common responses to perceived display rules (i.e., professional guidelines for emotional expression), and are differentially associated with burnout. The present study aimed to fill a gap in the literature by evaluating the empirical links between work stressors (i.e., role conflict, role ambiguity, and lack of autonomy), personality (i.e., extraversion), emotional labor (i.e., surface acting and deep acting), and burnout in a sample …

Spatial And Temporal Variations In The Air-Sea Carbon Dioxide Fluxes Of Florida Bay, Christopher Michael Dufore

USF Tampa Graduate Theses and Dissertations

The flux of CO2 between the ocean and the atmosphere is an important measure in determining local, global, and regional, as well as short term and long term carbon budgets. In this study, air-sea CO2 fluxes measured using a floating chamber were used to examine the spatial and temporal variability of CO2 fluxes in Florida Bay. Measurements of dissolved inorganic carbon and total alkalinity obtained concurrently with chamber measurements of CO2 flux allowed calculation of ΔpCO2 from flux measurements obtained at zero wind velocity. Floating chamber measurements of ΔpCO2 were subsequently coupled with wind speed data to provide a simple …

Store-Operated Calcium Channels In The Function Of Intracardiac Neurons, Timetria Bonds

USF Tampa Graduate Theses and Dissertations

Proper autonomic regulation of mammalian cardiac function is dependent upon very complex and precise communication among the intracardiac ganglia and individual neurons within the ganglia. An array of neuromodulators is found within the ganglia that direct neuronal activity by modulating the movement of calcium. The current study determines that opioidergic agonists, which have been found to contribute to severe cardiac disease states and intracellular calcium mobilization, are also responsible for changes in the function of the intracardiac neuron via their effects on store-operated calcium channels (SOCs).

Previous studies suggest that phosphorylation plays a role in SOC regulation. Using Fura-2 calcium …

Determination Of Isotherms Of Enantiomers On A Chiral Stationary Phase Using Supercritical Fluid Chromatography, Wade Newlin Mack Ii

USF Tampa Graduate Theses and Dissertations

Supercritical fluids provide a robust, tunable environment with favorable transport properties and enhanced solubility. Supercritical carbon dioxide is an environmentally friendly substance that has distinct advantages to traditional solvents used in large scale chemical processing. Ibuprofen is an enantiomeric drug that has been shown to fight prostate cancer and has been used as a mild Alzheimer's disease treatment in the S conformation. Purification of high value products with decreased hazardous material consumption is accomplished by employing supercritical fluid chromatography (SFC). Large scale, single enantiomer purification of pharmaceuticals is dependent on scale-up information. Equilibrium isotherms provide the necessary information to scale-up …

The Invasive Cactus Moth, Cactoblastis Cactorum: Host Plant Testing, Species Interactions, And Effects On Local Opuntia Populations, Heather Jezorek

USF Tampa Graduate Theses and Dissertations

The invasive cactus moth, Cactoblastis cactorum, poses a threat to opunitoid cacti species of North America. The following work contains four separate studies investigating C. cactorum host plant preference and performance, predation and parastitism of C. cactorum, effects of C. cactorum on local Opuntia populations, and associational effects of host and non-host plants on C. cactorum and native Opuntia-feeding herbivores. We found that, among southwestern and Mexican opuntioid taxa, moths preferred O. engelmannii var. linguiformis and var. engelmannii for oviposition, while Consolea rubescens and O. streptacantha were superior larval hosts. Oviposition was best predicted by number of cladodes and degree …

An Examination Of Diet, Acculturation And Risk Factors For Heart Disease Among Jamaican Immigrants, Carol Renee Oladele

USF Tampa Graduate Theses and Dissertations

Background: The South Florida region is home to over 85,000 Jamaican immigrants. Yet, little is known about the dietary intakes and predictors of risk of disease within this immigrant group. An assessment of dietary intakes and the development of dietary intake methodologies specific to the Jamaican population was important as it permitted accurate estimation of the nutrient intakes of this immigrant population whose dietary habits are not well documented. In addition, nothing is known about the prevalence of risk factors for heart disease or factors influencing risk factors among this immigrant group. The purpose of this study was to assess …

Biochemical And Pharmacological Characterization Of Cytochrome B5 Reductase As A Potential Novel Therapeutic Target In Candida Albicans, Mary Jolene Patricia Holloway

USF Tampa Graduate Theses and Dissertations

The opportunistic fungus Candida albicans is a commensal member of the human microflora and is the most common causative agent of fungal-related disease with particular significance in immunocompromised individuals. Emerging drug resistance is a major problem in Candida, contributed by enzymes involved in the detoxification of xenobiotics and pharmacological agents. One such enzyme, cytochrome b5 reductase (cb5r), has a high pharmacological significance owing to its role in fatty acid elongation, ergosterol (or cholesterol in mammals) biosynthesis, and cytochrome P450-mediated detoxification of xenobiotics.

We have compared the kinetic, biochemical, and pharmacological characteristics of C. albicans cb5r isoforms, Cbr1 and Mcr1, as …

The Problem Of Evil In Augustine's Confessions, Edward Matusek

USF Tampa Graduate Theses and Dissertations

Augustine, the fourth-century Christian philosopher, is perhaps best-known for his spiritual autobiography Confessions. Two aspects of the problem of evil are arguably critical for comprehending his life in Books 1 through 9 of the work. His search for the nature and origin of evil in the various philosophies that he encounters (the intellectual aspect) and his struggles with his own weaknesses (the experiential aspect) are windows for understanding the actual dynamics of his sojourn.

I defend the idea above by providing a fuller examination of the key role that both aspects play in his spiritual journey. Examining relevant events from …

Explaining The "Female Victim Effect" In Capital Sentencing Decisions: A Case For Sex-Specific Models Of Capital Sentencing Research, Tara N. Richards

USF Tampa Graduate Theses and Dissertations

The potential influence of extralegal characteristics on the outcome of post-Furman capital cases (1972) has been a focus of criminal justice researchers and legal scholars. Much of this literature has assessed the impact of victim and defendant race on the likelihood of receiving the death penalty while a relatively underdeveloped body of research focuses on how victim sex may affect capital sentencing decisions. The present study uses focal concerns theory and the chivalry hypothesis to test the potential mediating effect of theoretical variables on the relationship between victim sex and juror capital sentence decision-making. In addition, it uses victim sex …

Comparative Life Cycle Assessments Of Lignocellulosic And Algae Biomass Conversion To Various Energy Products Through Different Pathways, Maria Juliana Pinilla

USF Tampa Graduate Theses and Dissertations

Bioenergy has the potential to reduce the world's dependence on fossil fuels, and to decrease the CO2 emissions due to fossil combustion. Lignocellulosic and algae biomass have been presented as promising feedstocks for bioenergy production.

In this study, a comparative Life Cycle Assessment (LCA) has been developed to evaluate the environmental impacts associated with different energy products via different routes across the whole life of algal and lignocellulosic bioenergy. Results were compared per energy basis, the production of 1 million BTU of energy products.

For the development of the comparative algae biomass conversion LCA, algal biomass was converted to liquid …

Religion As Aesthetic Creation: Ritual And Belief In William Butler Yeats And Aleister Crowley, Amy M. Clanton

USF Tampa Graduate Theses and Dissertations

William Butler Yeats and Aleister Crowley created literary works intending them to comprise religious systems, thus negotiating the often-conflicting roles of religion and modern art and literature. Both men credited Percy Bysshe Shelley as a major influence, and Shelley's ideas of art as religion may have shaped their pursuit to create working religions from their art. This study analyzes the beliefs, prophetic practices, myths, rituals, and invocations found in their literature, focusing particularly on Yeats's Supernatural Songs, Celtic Mysteries, and Island of Statues, and Crowley's "Philosopher's Progress," "Garden of Janus," Rites of Eleusis, and "Hymn to Pan." While anthropological definitions …

Teacher's Perception Of Their Principal's Leadership Style And The Effects On Student Achievement In Improving And Non-Improving Schools, Brenda Kay Hardman

USF Tampa Graduate Theses and Dissertations

Teachers' perceptions of their school leaders influence student achievement in their schools. The extent of this influence is examined in this study. This quantitative study examined teachers' perceptions of the leadership style of their principals as transformational, transactional or passive-avoidant in improving and non-improving schools in relation to student achievement. The study population was a purposeful sample of 143 teachers in 16 schools in one school district. Leadership behaviors, as perceived by the teachers, were measured using the Multi-factor Leadership Questionnaire. Student achievement was measured with the Florida Comprehensive Assessment Test results for each school using three years of results. …

"Not If, But When": Sex, Risk, And Trust In Timing Gardasil Vaccine Decisions, An Exploratory Study Among Healthcare Providers And Middle-Class Parents In The U.S., Kathleen Marie Brelsford

USF Tampa Graduate Theses and Dissertations

This dissertation research explores how values regarding sexuality, morality, responsibility, protection, trust, and risk — expressed through parent, daughter, and healthcare provider relationships and interactions — inform parental decisions regarding the Gardasil® vaccine. In particular, the research examines the competing and conflicting meanings that parents and providers ascribe to vaccination and how actors position the vaccine within a wider set of negotiated, value–laden discourses. Because these narratives are situated within a larger structural field that shapes the landscape in which providers and parents interact, relevant historical and structural factors, including vaccine policy, cost, and compensation are discussed.

Identification Of Novel Stat3 Target Genes Associated With Oncogenesis, Rachel Haviland

USF Tampa Graduate Theses and Dissertations

Cytokine and growth factor signaling pathways involving STAT3 are frequently constitutively activated in many human primary tumors, and are known for the transcriptional role they play in controlling cell growth and cell cycle progression. However, the extent of STAT3's reach on transcriptional control of the genome as a whole remains an important question. We predicted that this persistent STAT3 signaling affects a wide variety of cellular functions, many of which still remain to be characterized.

We took a broad approach to identify novel STAT3 regulated genes by examining changes in the genome-wide gene expression profile by microarray, using cells expressing …